aa316c73e0
Mainly the changes are related on establishing API to feed UV islands to OpenSubdiv, so it will know all the connectivity information and will be able to do proper interpolation. Island calculation is currently rather slow, not sure how to make it fast and not use lots of allocations. Shouldn't be THAT bad, since this code is only runs once when creating OSD mesh, and it's probably still faster than our orientation code.
139 lines
4.8 KiB
C
139 lines
4.8 KiB
C
/*
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* ***** BEGIN GPL LICENSE BLOCK *****
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* The Original Code is Copyright (C) 2015 Blender Foundation.
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* All rights reserved.
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*
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* Contributor(s): Sergey Sharybin.
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*
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* ***** END GPL LICENSE BLOCK *****
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*/
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#ifndef __OPENSUBDIV_CONVERTER_CAPI_H__
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#define __OPENSUBDIV_CONVERTER_CAPI_H__
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct OpenSubdiv_TopologyRefinerDescr;
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typedef struct OpenSubdiv_TopologyRefinerDescr OpenSubdiv_TopologyRefinerDescr;
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typedef struct OpenSubdiv_Converter OpenSubdiv_Converter;
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typedef enum OpenSubdiv_SchemeType {
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OSD_SCHEME_BILINEAR,
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OSD_SCHEME_CATMARK,
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OSD_SCHEME_LOOP,
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} OpenSubdiv_SchemeType;
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typedef struct OpenSubdiv_Converter {
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/* TODO(sergey): Needs to be implemented. */
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/* OpenSubdiv::Sdc::Options get_options() const; */
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OpenSubdiv_SchemeType (*get_type)(const OpenSubdiv_Converter *converter);
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int (*get_num_faces)(const OpenSubdiv_Converter *converter);
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int (*get_num_edges)(const OpenSubdiv_Converter *converter);
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int (*get_num_verts)(const OpenSubdiv_Converter *converter);
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/* Face relationships. */
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int (*get_num_face_verts)(const OpenSubdiv_Converter *converter,
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int face);
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void (*get_face_verts)(const OpenSubdiv_Converter *converter,
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int face,
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int *face_verts);
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void (*get_face_edges)(const OpenSubdiv_Converter *converter,
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int face,
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int *face_edges);
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/* Edge relationships. */
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void (*get_edge_verts)(const OpenSubdiv_Converter *converter,
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int edge,
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int *edge_verts);
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int (*get_num_edge_faces)(const OpenSubdiv_Converter *converter,
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int edge);
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void (*get_edge_faces)(const OpenSubdiv_Converter *converter,
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int edge,
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int *edge_faces);
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float (*get_edge_sharpness)(const OpenSubdiv_Converter *converter,
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int edge);
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/* Vertex relationships. */
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int (*get_num_vert_edges)(const OpenSubdiv_Converter *converter, int vert);
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void (*get_vert_edges)(const OpenSubdiv_Converter *converter,
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int vert,
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int *vert_edges);
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int (*get_num_vert_faces)(const OpenSubdiv_Converter *converter, int vert);
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void (*get_vert_faces)(const OpenSubdiv_Converter *converter,
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int vert,
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int *vert_faces);
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/* Face-varying data. */
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int (*get_num_uv_layers)(const OpenSubdiv_Converter *converter);
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void (*precalc_uv_layer)(const OpenSubdiv_Converter *converter, int layer);
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void (*finish_uv_layer)(const OpenSubdiv_Converter *converter);
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int (*get_num_uvs)(const OpenSubdiv_Converter *converter);
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void (*get_uvs)(const OpenSubdiv_Converter *converter, float *uvs);
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int (*get_face_corner_uv_index)(const OpenSubdiv_Converter *converter,
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int face,
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int corner);
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void (*free_user_data)(const OpenSubdiv_Converter *converter);
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void *user_data;
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} OpenSubdiv_Converter;
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OpenSubdiv_TopologyRefinerDescr *openSubdiv_createTopologyRefinerDescr(
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OpenSubdiv_Converter *converter);
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void openSubdiv_deleteTopologyRefinerDescr(
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OpenSubdiv_TopologyRefinerDescr *topology_refiner);
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/* TODO(sergey): Those calls are not strictly related to conversion.
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* needs some dedicated file perhaps.
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*/
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int openSubdiv_topologyRefinerGetSubdivLevel(
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const OpenSubdiv_TopologyRefinerDescr *topology_refiner);
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int openSubdiv_topologyRefinerGetNumVerts(
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const OpenSubdiv_TopologyRefinerDescr *topology_refiner);
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int openSubdiv_topologyRefinerGetNumEdges(
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const OpenSubdiv_TopologyRefinerDescr *topology_refiner);
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int openSubdiv_topologyRefinerGetNumFaces(
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const OpenSubdiv_TopologyRefinerDescr *topology_refiner);
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int openSubdiv_topologyRefinerGetNumFaceVerts(
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const OpenSubdiv_TopologyRefinerDescr *topology_refiner,
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int face);
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int openSubdiv_topologyRefnerCompareConverter(
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const OpenSubdiv_TopologyRefinerDescr *topology_refiner,
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OpenSubdiv_Converter *converter);
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#ifdef __cplusplus
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}
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#endif
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#endif /* __OPENSUBDIV_CONVERTER_CAPI_H__ */
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